Study Finds 'Forever Chemicals' on Nearly 40% of California-Grown Produce

A randomized trial published in the journal Pediatrics found that addressing parental stress through mindfulness techniques can significantly reduce childhood obesity risk. Researchers at Yale University enrolled 114 ethnically and socioeconomically diverse parents of overweight or obese children aged two to five in a 12-week program. Half the participants received the "Parenting Mindfully for Health" intervention, which combined mindfulness and stress-management training with standard nutrition and physical activity counseling, while the control group received nutrition and exercise guidance alone.

The results were striking: children whose parents practiced mindfulness showed healthier eating patterns and avoided the weight gain observed in the control group. At the three-month follow-up, children in the control group were six times more likely to move into the overweight or obesity risk category compared to those in the mindfulness group. The correlation between high parental stress, reduced positive parenting, and decreased healthy food intake in children persisted in the control group but was no longer significant among families who received the mindfulness intervention.

According to the researchers, the findings suggest that parental well-being is a critical but often overlooked factor in childhood weight management. Rather than focusing solely on what children eat and how much they move, addressing the stress levels of caregivers may be an effective upstream strategy for preventing pediatric obesity.

Research published in Nature Communications by scientists at the Fralin Biomedical Research Institute at Virginia Tech has found that a ketogenic diet can dramatically restore the exercise benefits that high blood sugar normally blocks. The study, led by exercise medicine researcher Sarah Lessard, examined mice with hyperglycemia divided into two groups: one following a standard carbohydrate-rich diet and the other a ketogenic diet high in fat and low in carbs. Both groups were given access to voluntary exercise.

The results revealed that after just one week on the ketogenic diet, the mice's blood sugar levels normalized completely. Over time, their muscles developed more slow-twitch fibers, which are associated with greater endurance, and their bodies became significantly more efficient at using oxygen, a key marker of aerobic capacity. In contrast, the mice on standard diets with high blood sugar failed to achieve these exercise-related improvements despite the same physical activity levels.

The findings are particularly relevant for the millions of people with prediabetes or type 2 diabetes who exercise but may not experience the full cardiovascular and muscular benefits due to elevated blood sugar. Lessard has indicated plans to continue this research in human subjects to determine whether the same benefits translate from mice to people.

U.S. Health Secretary Robert F. Kennedy Jr. announced during an appearance on the Joe Rogan Experience podcast that the FDA will establish a federal definition of ultra-processed foods by April 2026, marking the first time in history that the term would carry official regulatory meaning. According to Kennedy, the definition will be followed by front-of-package nutrition labeling using a "red light, yellow light, green light" graphic system to indicate a food's overall healthfulness.

The announcement comes after the FDA and USDA launched a joint Request for Information in July 2025 seeking public input on what factors and criteria should define ultra-processed foods. Currently, no single authoritative definition exists for the U.S. food supply, though the term is generally understood to refer to foods altered through industrial processes with added ingredients designed to enhance taste, appearance, or shelf life. Research has increasingly linked high consumption of ultra-processed foods to obesity, cardiovascular disease, and other chronic health conditions.

Food industry groups are watching the development closely, as a formal definition could have sweeping implications for labeling requirements, marketing claims, and federal nutrition programs like SNAP. Critics of the move argue that defining ultra-processed foods precisely is scientifically challenging, while public health advocates say a clear definition is long overdue and essential for helping consumers make informed choices.